Cab



FIG. 1 is a top, front, right perspective view of the claimed design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

In the drawings, the broken lines depict portions of the cab that form no part of the claimed design. 

CLAIM We claim the ornamental design for a cab, as shown and described. 